Path traversal in FortiSIEM - CVE-2026-106173
Published: October 14, 2026 / Updated: October 14, 2026
Vulnerability identifier: #VU155647
CSH Severity: Critical
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-106173
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to improper limitation of a pathname to a restricted directory ('path traversal') in grpc phQueryMaster. An unauthenticated attacker can execute unauthorized code or commands via specially crafted packets.
Affected software
FortiSIEM
How to mitigate CVE-2026-106173
Install update from vendor's website.
FortiSIEM - update to 7.5.1